An old oriental saying tells us, 'when our willpower is concentrated upon a stone, it can pass through it. When our willpower is focused and in harmony with the universe, it can command the wind, rain and thunder'. But from where does our willpower come? Those who understand and answer this question are those who accomplish important tasks. When we coordinate mind and body by stilling the waves of our mind to imperceptible, infinitely decreasing ripples, we can send forth our great willpower that moves the universe.

19 : Willpower - Ki Sayings (2003)